IndividualActive
Isabella Oldham, RDN, LDN
NPI 1508686023 · Registered Dietitian · Irvine, CA
Isabella Oldham, RDN, LDN is a Registered Dietitian provider in Irvine, CA (NPI 1508686023).
Provider details
- NPI number
- 1508686023
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN, LDN
- Sex
- Female
- Sole proprietor
- No
- License
- 86198144 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(56/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
19501 Sierra Mia Rd
Irvine, CA 92603-3818
Phone: (949) 648-0103
Street-level locationGet directions
Mailing address
19501 Sierra Mia Rd
Irvine, CA 92603-3818
Registry dates
- Enumerated
- 2024-10-10
- Last updated
- 2024-10-10
- Certified
- 2024-10-10
Frequently asked questions
- What is Isabella Oldham's NPI number?
- Isabella Oldham's National Provider Identifier (NPI) is 1508686023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabella Oldham's specialty?
- Isabella Oldham is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Isabella Oldham located?
- Isabella Oldham's practice location on file with NPPES is 19501 Sierra Mia Rd, Irvine, CA 92603-3818.
- What is Isabella Oldham's phone number?
- The practice phone number listed in the NPPES registry for Isabella Oldham is (949) 648-0103.
- Is Isabella Oldham's NPI active?
- Yes — Isabella Oldham's NPI (1508686023) is active in the NPPES registry as of the last update on 2024-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.